Function to use rem units, unless forced to use pixels

README.md

In IE specific stylesheet set $rem-to-px: 16px; and then in your ordinary stylesheets use rem(X) - this will produce Xrem for normal browsers and (X*16)px for IEold.

See also: http://jakearchibald.github.com/sass-ie/

rem-to-px.scss

$rem-to-px: false !default;
@function rem($val) {
	@if $rem-to-px {
		@return $val*$rem-to-px;
	} @else {
		@return $val*1rem;
	}
}